Tooth Anatomy

Structure of the Tooth

  • The outer protective layer of the tooth is enamel, which is extremely hard.
  • The middle layer is dentin.
  • The pulp is composed of nerves and blood vessels that exit the tooth via the apices.
  • The root connects to alveolar bone via the periodontal ligament.
AAFP Home Study Program—with permission
AAFP Home Study Program—with permission